/Engine/Source/Editor/LevelEditor/Public/LevelEditorOutlinerSettings.h
Helper class to manage initalization options specific to the Level Editor Outliners Use AddCustomFilter/AddCustomClass Filter to register new filters in the Outliner. Make sure that the filters you attach have a category, otherwise they will not show up
class FLevelEditorOutlinerSettings : public [TSharedFromThis< class FLevelEditorOutlinerSettings >](API\Runtime\Core\Templates\TSharedFromThis)